442471

Appears in sequences

• Expansion of (1+13*x+32*x^2+13*x^3+x^4)/(1-x)^5.at n=20A160765
• Numbers k > 2 such that 3^(k-1) == 1 (mod k) and gcd(k, 2^(k-1)-1) = 1.at n=10A306144